Siemens TLE 4270 5-V Low-Drop Fixed Voltage Regulator Data Sheet
Summary
The TLE 4270 is a high-reliability, low-dropout fixed-voltage regulator designed to provide stable 5.0V power with wide input tolerance up to 36V. Engineered for robust performance in challenging environments, it features multiple built-in protections, including overvoltage, temperature, and reverse polarity safeguards. This comprehensive manual provides critical technical specifications, detailed pin configurations, and application guidelines—making it an essential component resource for electrical engineers and hardware designers building demanding systems, especially those requiring automotive or industrial grade power stability.
Page 1 Text Content
5-V Low-Drop Fixed Voltage Regulator TLE 4270
Features Output voltage tolerance ≤ ± 2 % Low-drop voltage Integrated overtemperature protection Reverse polarity protection Input voltage up to 42 P-TO220-5-11 Overvoltage protection up to 65 V (≤ 400 ms) (P-TO220-5-1) Short-circuit proof Suitable for use in automotive electronics Wide temperature range Adjustable reset time ESD protection > 4000 V
Type Ordering Code Package
P-TO220-5-12
TLE 4270 Q67000-A9209-A903 P-TO220-5-11 (P-TO220-5-2) TLE 4270 Q67000-A9243-A904 P-TO220-5-12 TLE 4270 Q67006-A9201-A901 P-TO263-5-1 TLE 4270 Q67000-A9209-A801 P-TO220-5-1 TLE 4270 Q67000-A9243-A802 P-TO220-5-2 TLE 4270 Q67006-A9201-A802 P-TO220-5-8
P-TO263-5-1
TLE 4270 Q67006-A9360 P-TO252-5-1
(P-TO220-5-8)
▼ Not for new design ● New type
Functional Description This device is a 5-V low-drop fixed-voltage regulator. The maximum input voltage is 42 V (65 V, ≤ ms). Up to an input voltage of 26 V and for an output current up to 550 m A it regulates the output voltage within a
% accuracy. The short circuit protection limits the P-TO252-5-1 (D-PAK)
output current of more than 650 m A. The device incorporates overvoltage protection and temperature protection that disables the circuit at unpermissibly high temperatures.
Semiconductor Group 1998-11-01
Page Summary Contents For Siemens TLE 4270 5-V Low-Drop Fixed Voltage Regulator Data Sheet
Manual Details
| Brand | Siemens |
|---|---|
| Pages | 19 |
| File Size | 129.27 KB |
| Published | June 05, 2026 |
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Frequently Asked Questions
TLE 4270的最大输入电压和输出电压是多少？
最大输入电压为42V，可承受65V（400ms）；标准输出电压为5V。
这个稳压器适用于哪些应用环境？
它特别适合用于汽车电子设备，并且具有宽工作温度范围。
如何设置复位时的延迟时间？
可以通过在引脚4 (D)上连接一个电容器来外部调节电源开启复位的时间（Power-on-reset time）。
稳压器的短路保护功能如何限制电流？
过流保护将输出电流限制在超过650 mA以上。
使用此设备时，是否需要额外的电容或其他组件来保证稳定性和补偿影响？
是的，输入端和输出端都需要分别连接合适的电容器（分别为C和CE），以保证稳定性并补偿线路影响。